Built to Last muffins

Decided on an impulse to bake muffins. Banana choco chips muffins. Why I don't remember. So we decided to go out to The Store and get the ingredients that where needed. We got the recipe off the net by the way. In case any of you were wondering if I did memorize the recipe. I didn't.

After getting the goods, went back home, and started to work on the muffins. Weighing the flour, butter, sugar. Mixing all of them in a mixing bowl and stirred and stirred. The dough was ridiculously hard so i decided to ask my mum if it was natural for it to be like that. Apparently it is. So after placing the mixture into cups, we waited patiently for them to be ready. And after 10 minutes they were. Took them out, tasted them. Weird. Not like muffins. More like tar. Ok not that bad, the taste was good but the texture was more like bread. We were pondering what went wrong, retracing our steps.

Then she asked me, "Did you add the baking soda?"